Detection of moving target based on Fractional Fourier Transform in SAR clutter

摘要：

Based on the analysis of the characteristics of SAR target echo and the time excursion of fractional Fourier transform (FRFT), the Article has put forward a time-delay balance method based on FRFT to detect the slowly moving target in SAR echo according to the characteristics of SAR ground clutter. Calculation on the FRFT of echo signal and the FRFT of echo signal after short delay time results in two complex signals, in which, the modules of static backgrounds are just totally same, and in the range of moving target, the amplitude of module will cause an offset, therefore, when calculate the difference of the modules of two complex signals, the static background could be balanced and the moving target could be detected effectively. Simulation analysis indicates that the method in the Article shows its advantages in a background with strong clutter.

关键词： SAR fractional Fourier transform time-delay balance

作者: GUO H.Y. Guan J

作者单位: Command Department,NAAU Yantai, Shandong P.R.China, 264001 Department of Electronic and Information Engineering NAAU Yantai, Shandong P.R.China, 264001

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 2003-2006

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）